Oil filter and cooler



,7 Inventor A fiorney 2 Sheets-Sheet 1 o m o o O O O O Sept 26, 1944. E.o. LANCE OIL FILTER AND COOLER Filed June 13, 1944 p fi E. o. LANCE2,358,933

OIL FILTER AND COOLER Filed June 13, 1944 2 Sheets-Sheet 2 For :4

=ii I l l *8 i; J %22 Inventor 7mi/ Orr-e71 Lance Patented Sept. 26,1944 on. rnrrna AND 000mm Ermil 0. Lance, Hot Springs, Aria, assignor toW. T. Benfrow, Neosho, Mo.

Application June 13, 1944, Serial No. 540,065

50laims.

This invention relates to oil filters and coolers of the type used oninternal combustion engines for filtering and cooling crank case 011;the object of the invention being to provide a medium whereby the oilpumped from the crank case will be thoroughly filtered and cooled priorto its return to the case,

The present invention, together with its objects and advantages will bebest understood from a study of the following description taken inconnection with the accompanying drawings wherein-- Figure 1 is aperspective view of the device with the cover thereof removed, andcertain parts broken away and shown in section.

Figure 2 is a perspective view of the cover plate of the device.

Figure 3 is a detail vertical sectional view taken substantially on theline 3-3 of Figure 4.

Figure 4 is a top plan view of the device with the cover plate removed.

Figures 5, 6 and 7 are detail sectional views taken substantially on thelines -5; 6-4; and 'l'|, respectively, of Figure 4.

Referring more in detail to the drawings it will be seen that the devicecomprises an outer shell or casing 5 the peripheral wall of which,except for one end, i provided with cooling fins I as shown.

Disposed within the outer casing or shell I is an inner casing or shell1 that in top plan is substantially the same in shape as the outer shellor casing I and has a. fiat end 8, open a at 8. and disposed against thefiat end It or the outer casing or shell 5 as suggested in Figure l; theshells 5 and I being secured together at the ends I and 10 thereofthrough the medium of screws or other fastening elements II, as alsobest shown in Figure 1.

Except at the ends mentioned the shells 5 and I have the peripheralwalls thereof spaced as shown to provide therebetween an oil-circulatingand cooling chamber l2. s

As shown in Figure 4 the bottom wall of the shell I is provided with aformation It that presents a downwardly opening socket to receive aformation It provided on the bottom of the outer casing 5 and presentingan upwardly extending lug. The formation It is provided with a threadedbore II as shown to facilitate the attachment, to the device, of abracket or other attaching medium for securing the device in the properposition with respect to the internal combustion engine, and inconnection with which it Further the bottom walls of the casings orshells 5 and I- are complementarily formed as shown in Figure 5 toprovide on the bottom wall of the shell 5 an inwardly extendingprojection, and on the bottom wall of the shell I a socket receivingsaid extension, the latter being indicated by the reference numeral l6,and the former by the reference numeral li. v

The extension i6 is secured within th socket ll through the medium of ascrew or similar fastening element I8. Thus the shells or casings 5 andi are rigidly secured against relative movement.

The shell or casing I constitutes a filtering chamber and has positionedtherein a filtering mass it of any suitable material. The mass is isencased in a wrapping of wire cloth or the like 20 as shown to advantagein Figure 4. 4

Disposed over the top surface of 'the mass it is a sheet 2| of felt orsimilar material; the same being within the confines of the wrapping 20,and superimposed upon the felt covered surface of the mass it is aperforated strainer plate 22 of metal or other suitable material.

Disposed on the strainer plat 22 is a sinuous or substantially s-shapedbafile member 23 that, in the present instance is shown anchored inposition within the confines of the peripheral wall of the casing orchamber I by having the extremities thereof reduced to form lug 24 thatare projected through openings provided therefor in the wall of thecasing or shell I, as shown in Figure 1.

The shell or casing I has provided in the peripheral wall thereof anoverflow notch 24, and the baflle member 23, intermediate its ends, isprovided in the lower edge thereof with a notch 25; the latter beingbest shown in Figure 5.

At the end l0 thereof the shell or casing. 5 is provided with an inletnipple 26 to which is connected a suitable conduit (not shown) leadinfrom the internal combustion engine so that the oil therefrom will pasdirectly into the filtering chamber la formed by the inner shell orcasing I and beneath the filtering medium l9 which latter, as shown inFigure 5, is supported in spaced relation to the bottom of the chamberl2 through the medium of short lugs 21 rising from the bottom of theshell I.

The oil so entering the chamber 1 will percolateupwardly through thefiltering mass l9, and member 2 I, to spread out over the surface of thescreen 22; the oil so passing up through the mass it and felt sheet 2|being thus cleaned from all impurities and foreign matter.

As the oil percolates through the plate 22 in seeking a levelon theplate 22, said oil will be caused to fiow in directions indicated by theof the chamber and at the side of the bafile 28' opposite to the notch24 is an inverted Vshaped baffle 29 that has in one leg thereof anopening 30 and in a second leg thereof an opening 3I, the opening 30being disposed in a plane above the opening 3| so that in order to passthe baffle 29 the oil will have to flow upwardly through the opening 30and then downwardly to pass through the opening 3|, whence it will thenflow through the chamber I2 to the opposite side thereof. In this secondside of the chamber I2 there are provided a pair of inverted V-shapedbaflies 32-32, that are substantially identical in construction with thebafile 29 and are correspondingly equipped with openings, as shown inFigure 1, causing the oil to again take a somewhat circuitous course inreaching the oil outlet 33 provided for the chamber I2 at this side ofthe chamber.

It will be apparent that the oil in spilling into the chamber I2 at thenotch 24 will cause to' circulate through the chamber I2 passing throughthe baflles 29 and 32 to reach the outlet 33 which will, of course, beconnected to the crank case through the medium of a conduit which willserve to return the oil thus filtered and cooled back to the crank case.

Since obviously the use of the baiiles will retard the flow of oil inits travel to the outlet 33, sufficient contact of the oil with thesurface of the shell 5 is assured for the effective cooling of the oilsubsequent to the filtering thereof.

Completing the device is a suitable cover plate 34 that serves as aclosure common to the shells or casing 5 and I and is secured inposition on the device through the medium of screws or other fasteningelements 35.

Also the cover plate 34 is provided with a suitable gasket 36 to insurea non-leak joint between the top edges of the walls of the casing orshells 5 and I and the plate 34; and also leaving but the notch 24 asthe medium for escape of the oil from the filtering chamber Ia to thecooling chamber I2.

To maintain the filtering waste material I9 against packing down andbecoming compressed, and consequently to keep it in an efficientexpanded condition, there are placed within the mass I9 two or more coilsprings 31 as shown in Figures 1 and 3.

It is thought that the simplicity of the device together with itsconstruction, utility and advantages will be appreciated and clear tothose skilled in the art without further detailed description.

It is also to be understood that while I have herein shown and describeda preferred embodiment of the invention, I claim all such forms of theinvention to which I am entitled in view of Having thus described theinvention what is claimed as new is:

1. In an apparatus of the character set forth, adapted for use with aninternal combustion engine, a pair of nested shells providing an innerfiltering chamber and an outer cooling chamber, filtering meanssupported in the filtering chamber above the bottom thereof and havingits top surface below the top of said filtering chamber, said filteringchamber having in the peripheral wall thereof and above the top surfaceof said filtering means an aperture for the overflow of the filteredliquid from the filtering chamber to said cooling chamber, an inlet atone end of the-shells through which oil may pass directly into thefiltering chamber beneath said filtering means, and an outlet at theside of the cooling ichamber farthest remote from said overflow apertureand through which the filtered oil flowing through said cooling chambermay escape therefrom, and baffles arranged in said cooling chamber;certain of said bafiies extending from the top to the bottom of saidchamber and of a width corresponding to the width of the chamber andprovided with openings arranged in different planes to permit fiow ofthe oil through the cooling chamber toward said outlet.

2. In an apparatus for use with an internal combustion engine forfiltering and cooling the oil used thereby, a filtering chamber, acooling chamber circumjacent said filtering chamber, a filtering masssupported in the filtering chamber above the bottom of said chamber withthe top surface of said mass below the top of said filtering chamber, asinuous baflle interposed between the top of said filtering mass and thetop of said chamber and secured at one end thereof to one side of saidfiltering chamber at an opposite end thereof to an opposite side of saidfiltering chamber, and being provided intermediate its ends with a notchto permit passage of the oil percolating through the filtering mass fromone side to the other of said baffle, said filtering chamber being alsoprovided above the top surface of said filtering mass with a singleoverflow opening for the overflow of the filtered oil into said coolingchamber, an inlet through which 011 may pass into said filteringchamber, below said filtering mass, and an outlet for said coolingchamber remote from said overflow opening.

3. In an apparatus for use with an internal combustion engine forfiltering and cooling the oil used thereby, a filtering chamber, acooling chamber circumjacent said filtering chamber, a filtering masssupported in the filtering chamber above the bottom of said chamber withthe top surface of said mass below the top of said filtering chamber, asinuous baffle interposed between the top of said'filtering mass and thetop of said chamber and secured at one end thereof to one side of saidfiltering chamber at an opposite end the prior art and scope of theappended claims.

thereof to an opposite side of said filtering chamber, and beingprovided intermediate its ends with a notch to permit passage of the oilpercolating through the filtering mass from one side to the other ofsaid bafile, said filtering chamber being also provided above the topsurface of said filtering mass with a single overflow opening for theoverflow of the filtered oil into said cooling chamber, an inlet throughwhich oil may pass into said filtering chamber below said filteringmass, and an outlet for said cooling chamber remote from said overflowopening, and baflle means arranged in said cooling chamber interasaaess4. In an apparatus for use with an internal I combustion engine forfiltering and cooling the oil used thereby, a filtering chamber, acooling chamber circumiacent said filtering chamber, a filtering masssupported in the filtering chamber above the bottom oi! said chamberwith the top surface 0! said mass below the top of said filteringchamber, a sinuous bailie interposed between the top of said filteringmass and the top of said chamber and secured at one end thereof to oneside 0! said filtering chamber at an opposite end'thereoi to an oppositeside of said filtering chamber, and being provided intermediate its endswith a notch to permit passage or the oil percolating through thefiltering mas from one side to theother 01' said baflle, said filteringchamber being'also provided above the top suriace of said filtering masswith a single overflow opening for the overflow or the filtered oil intosaid cooling chamber, an inlet through which oil may pass into saidfiltering chamber below said filtering mass, and an outlet for saidcooling chamber remote from said overflow opening, and battle meansarranged in said cooling chamber intermediate said overflow opening andsaid 011 outlet for retarding the flow or oil through the coolingchamber towards said outlet, certain of said baiiies extending from thetop to the bottom of said cooling chamber and from one wall to theopposite wall or said cooling chamber and provided with openings topermit the oil to flow therebeyond; the openings being arranged indifierent planes, as and for the purpose specified.

5. In an apparatus of the character set forth, adapted for use with aninternal combustion 'engine, a pair of nested shells providing an innerfiltering chamber and an outer cooling chamber, filtering meanssupported in the filtering chamber above the bottom thereof and havingits top surface below the top of said filtering chamber, said filteringchamber having in the peripheral wall thereof and above the top surfaceof said filtering means an aperture for the overflow 01! the filteredliquid from the filtering chamber to said cooling chamber, an inlet atone end of the shells through which oil may pass directly into thefilter chamber beneath said filtering means, and an outlet at the sideof the cooling chamber farthest remote from said overflow aperture andthrough which the filtered oil flowing through said cooling chamber mayescape therefrom; and a sinuous baflle interposed between the top ofsaid filtering means and the top of said chamber and providedintermediate its ends with a notch to permit passage or the oilcirculating through the filtering means'from one side to the other oisaid baiiie, and baflle means arranged in said cooling chamber forretarding the flow of oil from the cooling chamber toward said'outlet.

ramp 0. LANCE.

